The effluent filter is a small but critical component of your septic system. Located at the outlet of your septic tank, this filter is designed to prevent solids from moving out of the tank and into the drain field. A clogged filter can lead to a domino effect of serious, and often expensive, problems. If left unaddressed, the filter can cause backups in your home, slow drains, or a complete system failure.
At Great Falls Septic Service, we know that cleaning your effluent filter is a vital part of regular septic system maintenance. While we recommend having a professional inspect your system annually, you can perform this simple task yourself. Here is a step-by-step guide to get it done safely:
Step 1: Gather Your Supplies Before you begin, assemble the necessary tools and protective gear. You will need a garden hose with a spray nozzle, a long-handled brush, a bucket, and, most importantly, personal protective equipment (PPE): rubber gloves, eye protection, and a face mask. These items protect you from harmful bacteria and gases.
Step 2: Locate the Filter Your effluent filter is located at the access port or riser on the outlet side of your septic tank. You may have two lids on your tank; the filter is typically found in the second compartment where the wastewater exits the tank.
Step 3: Remove the Lid and the Filter Wearing your gloves, carefully remove the lid from the access port. Next, reach in, grab the filter’s “T” handle, and lift the entire filter assembly out of its housing. Hold the filter over the tank or a bucket to catch any debris that may fall off.
Step 4: Clean the Filter Using a garden hose with a spray nozzle, spray the filter over the septic tank to rinse off the accumulated solids. Use a long-handled brush to scrub off any stubborn debris until the water runs clear.
Step 5: Replace the Filter and Secure the Lid Once the filter is clean and inspected for any damage, carefully place it back into its housing, ensuring it is properly seated and sealed. It is crucial that you immediately replace and secure the lid. Never leave the access port open, as it poses a serious safety hazard to children and pets who could fall in and drown.
By keeping your effluent filter clean, you help ensure that your septic system continues to function correctly and avoid the risks of a system failure.
A Simple Step for Long-Term System Health
By keeping your effluent filter clean, you take a proactive step toward ensuring your septic system continues to function correctly, helping to avoid costly risks like backups and drain field failure. While cleaning the filter yourself is a great habit, it’s only one part of a complete maintenance plan. Regular professional inspections can catch deeper issues that a simple cleaning can’t fix, from early signs of a failing pump to a developing clog in your drain field. To ensure your septic system is in peak condition and to schedule your next inspection or pumping service, contact Great Falls Septic Service today.

